Originally Posted by adewolf
I have an Asus A8JS with the Core Duo 7200. I went the Dapper 64 way but got snagged by Flash and the Nvidia proprietary driver. I just could not get them to work, so I went back to Linux Mint 32bit (Ubuntu Dapper with audio and video codecs pre-installed).
Well for the next time, that one is easy enough to fix for you
The NVidia drivers are 64 Bit compatible, I can tell you that much for certain as I run them myself and have for quite some time.
The Flash plugin, while they are working on a 64 Bit version, there are 32Bit versions that will run fine on AMD64 at least with the emulation libraries installed as the processor is backwards compatible with 32 Bit code. I believe Core 2 Duos are as well but am not positive on that. At any rate if you run the Firefox(Or whatever browser) with the 32 Bit code, you can load in the the 32 Bit Plugins as well, which includes Flash. Note the GNash does compile in 64 Bit so that is also an option.
The same basic concept is there for MPlayer as well, getting a 32 Bit Binary shouldn't be to difficult and would allow you to use the win32codecs if you wanted. Personally I am finding myself not really needing those codecs at all.